*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
.section{
    margin: 100px auto;
    width: 472px;
    height: 422px;
    background-color: #39a6eb;
    padding: 8px 10px;
    font-family: "Microsoft YaHei";
}

.all{
    width: 450px;
    height: 405px;
}
.nav{
    height: 50px;
}
.nav>a{
    padding: 0 15px;
    width: 225px;
    height: 50px;
    line-height: 50px;
    display: block;
    font-size: 18px;
    font-weight: bold;
    text-align: center;
    float: left;
    cursor: pointer;
}
.nav>a[class="on-2-login"]{
    background-color: #89caf4;
    border-bottom: 1px solid #eee;
}
.login{
    background-color: #89caf4;
}
.login.on{
    background-color: #e1f2fc;
}
.contentbox{
    width: 450px;
}
.cont-1>input {
    width: 350px;
    height: 46px;
    border: 1px solid #c6cddc;
}
.cont-1>input{
    line-height: 46px;
    padding-left: 40px;
}
.cont-1>input[name="txt"]{
    margin-top: 35px;
}
.cont-1>input[name="psd"]{
    margin-top: 17px;
}
.verify{
    margin: 0 auto;
    width: 352px;
    height: 40px;
    margin-top: 16px;
    border: 1px solid #c4cbd1;
    text-align: center;
    line-height: 40px;
    font-size: 12px;
    color: #b9bbb8;
    border-radius: 20px;
    position: relative;
    z-index: 2;

}
.verify:hover{
    cursor: pointer;
}
.btn{
    width: 350px;
    height: 44px;
    background-color: #39a6eb;
    margin-top: 30px;
    font-size: 18px;
    color: #fff;
}
.btn:hover{
    background-color: rgba(121,177,212,0.9);
}
.about{
    width: 350px;
    height: 26px;
    font-size: 14px;
    margin: 0 auto;
    margin-top: 46px;
}
.about>a{
    text-decoration: none;
    color: #4e6d99;
}
.about>a>span{
    width: 1px;
    height: 12px;
    display: inline-block;
    border: 1px solid #ccd2d0;
}
/*cont:2*/
.cont-2>.text{
    margin: 0 auto;
    width: 350px;
    height: 30px;
    font-size: 15px;
    display: inline-block;
    margin-top: 30px;
}
.cont-2>.text>a{
    text-decoration: none;
    color: #4174a9;
    font-weight: bold;
}
.cont-2>img{
    margin-top: 12px;
}
.contentbox>div{
    width: 450px;
    height: 355px;
    text-align: center;
    display: none;
    background-color: #e1f2fc;
}
.cont-2>.about{
    margin-top: 54px;
}
.contentbox>div[class="box active"]{
    display: block;
}
/*这是低端浏览器下placeholder的字体颜色*/
.cont-1>input{
    color: #bfbfbf;
}
/*这是firefox下placeholder的字体颜色*/
.cont-1>input::-moz-placeholder {
    color: #bfbfbf;
}
/*这是webkit下placeholder的字体颜色*/
.cont-1>input::-webkit-input-placeholder {
    color: #bfbfbf;
}